1113015421 has 16 divisors (see below), whose sum is σ = 1347010560. Its totient is φ = 898372080.

The previous prime is 1113015401. The next prime is 1113015433. The reversal of 1113015421 is 1245103111.

It is a cyclic number.

It is not a de Polignac number, because 1113015421 - 2⁹ = 1113014909 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113015401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2845 + ... + 47266.

It is an arithmetic number, because the mean of its divisors is an integer number (84188160).

Almost surely, 2^1113015421 is an apocalyptic number.

It is an amenable number.

1113015421 is a deficient number, since it is larger than the sum of its proper divisors (233995139).

1113015421 is a wasteful number, since it uses less digits than its factorization.

1113015421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50304.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 1113015421 is about 33361.8857530566. The cubic root of 1113015421 is about 1036.3355442899.

Adding to 1113015421 its reverse (1245103111), we get a palindrome (2358118532).

The spelling of 1113015421 in words is "one billion, one hundred thirteen million, fifteen thousand, four hundred twenty-one".